The "long co oil service world" is the concept
It is guided by the idea of "one-man" service
The company will deliver the goods to the site immediately, and the technical service personnel will respond to the after-sales service and on-site guidance
Please ensure that each service must have a technical serviceman who has been employed for more than five years
The technical service staff will follow the 24-hour tracking service to meet customers' on-site construction work
